.page{
    width: 100%;
    height: 100%;
    border: 3px solid #000;
    display: flex;
    background: #d9d9d9;
}

.side {
    background: #fff;
    border: 2px  solid blue;
    position: relative;
    transition: width 200ms;
}
.sideBtn {
    width: 30px;
    height: 30px;
    background: rgba(0,0,0,.5);
    position: absolute;
    left:100%;
    bottom:25px;


}
.main{
    border: 2px solid red;
    width: 0;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}
.maintop{
    height: 80px;
    border: 3px solid #000;
}
.maintable{
    height: 0;
    flex-grow: 1;
    border: 2px solid blue;
}
.mainpage {
    height: 80px;
    border:2px solid red
}
.formTitle{
    border-bottom: 1px solid #ddd;
    line-height: 50px;
    position: relative;
    margin-bottom: 20px;
    &::after{
        content: '';
        width: 100px;
        height: 3px;
        background: blue;
        position: absolute;
        bottom:-2px;
        left:0
    }
}
.demo{
    line-height: 60px;
    text-align: center;
    background: #cecece;
}
.sitem{
    margin-top: 25px;
    display: flex;

    span.label{
        display: inline-block;
        width: 70px;
    }
    .no{
        width:100px;
        line-height: 35px;
        border: 1px solid #000;
        padding-left: 10px;
        margin-left: 10px;
    }
}

.ava{
    height:100px;

    display: flex;
    .preview{
        width: 100px;
        height: 100px;
        background: #ebebeb;
        border:1px dashed #000
    }
    .btns{
        display: flex;
        flex-direction: column;
        margin-left: 15px;
    }
}

.photo{
    width: 320px;
    height: 320px;
    border:1px solid red;
    margin: 0 auto
}